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#!/usr/bin/env python3
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# MIT License
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#
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# Copyright (c) 2022 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import TermTk as ttk
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# Create a root object (it is a widget that represent the terminal)
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root = ttk.TTk()
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# Create a window and attach it to the root (parent=root)
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calculatorWin = ttk.TTkWindow(parent=root, pos=(1,1), size=(30,17), title="My first Calculator")
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# Create a grid layout and set it as default for the window
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winLayout = ttk.TTkGridLayout()
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calculatorWin.setLayout(winLayout)
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# Define the Label and attach it to the grid layout at
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# Position (Row/Col) (0,0) and (Row/Col)Span (1,4)
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# I force the Max Height to 1 in order to avoid this widget to resize vertically
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resLabel = ttk.TTkLabel(text="Results", maxHeight=1)
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winLayout.addWidget(resLabel, 0,0, 1,4)
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# Define the Numeric Buttons and attach them to the grid layout
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btn1 = ttk.TTkButton(border=True, text="1")
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btn2 = ttk.TTkButton(border=True, text="2")
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btn3 = ttk.TTkButton(border=True, text="3")
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btn4 = ttk.TTkButton(border=True, text="4")
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btn5 = ttk.TTkButton(border=True, text="5")
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btn6 = ttk.TTkButton(border=True, text="6")
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btn7 = ttk.TTkButton(border=True, text="7")
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btn8 = ttk.TTkButton(border=True, text="8")
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btn9 = ttk.TTkButton(border=True, text="9")
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winLayout.addWidget(btn1, 1,0) # Colspan/Rowspan are defaulted to 1 if not specified
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winLayout.addWidget(btn2, 1,1)
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winLayout.addWidget(btn3, 1,2)
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winLayout.addWidget(btn4, 2,0)
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winLayout.addWidget(btn5, 2,1)
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winLayout.addWidget(btn6, 2,2)
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winLayout.addWidget(btn7, 3,0)
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winLayout.addWidget(btn8, 3,1)
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winLayout.addWidget(btn9, 3,2)
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# Adding the "0" button on the bottom which alignment is
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# Position (Row/Col) (4,0) (Row/Col)span (1,2)
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# Just to show off I am using another way to attach it to the grid layout
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winLayout.addWidget(btn0:=ttk.TTkButton(border=True, text="0"), 4,0, 1,2)
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# Define the 2 algebraic buttons
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winLayout.addWidget(btnAdd:=ttk.TTkButton(border=True, text="+"), 1,3)
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winLayout.addWidget(btnSub:=ttk.TTkButton(border=True, text="-"), 2,3)
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# The Enter "=" button (2 rows wide)
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winLayout.addWidget(btnRes:=ttk.TTkButton(border=True, text="="), 3,3, 2,1)
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# Last but not least an extrabutton just for fun
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winLayout.addWidget(mysteryButton:=ttk.TTkButton(border=True, text="?"), 4,2)
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# Start the Main loop
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root.mainloop()
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